Valve lifter



NOV. 11,1930. Q E;\NEGLEY 1,781,187

VALVE LIFTER Filed April 8, 1927 Nahum 7 J3 F 3 J7 fi J 5 14 6 3 21 2]INVENTOR:

V 1 i B 11 i' A TORNEYS.

Patented Nov. 11, 1930 PATENT QFFICE CHARLES E. NEGLEY, OF LOS ANGELES,CALIFORNIA s- VALVE LIFTER Application filed April 8,

3 3 construction, association and interrelation of parts, members andfeatures, all as shown in a certain embodiment in the accompanyingdrawing, described generally, and more particularly pointed ont in theclaim.

In the drawing: 1

Fig. 1 is a side elevation of the improved valve lifter shown inoperation;

Fig. 2 is an enlarged side elevation of the said valve lifter;

Fig. 3 is a sectional View on the line 3-3 of Fig. 2;

Fig. 4 is a sectional view on the line 4- of Fig. 2; and

Fig. 5 is a plan view showing the construction of certain elements ofthe invention and looking in the direction of the arrow 5 of Fig. 2.

Corresponding parts in all the figures are designated the same referencecharacters.

It is perhaps unnecessary to detail the purpose of a valve lifter, saveand except that some means must be utilized at times whereby the valvemay be lifted against compression of aspring, so that the spring can bereleased and the valve removed from its guide. The valve spring isusually confined as between a cup secured to the valve stem and thevalve guide bushing, said spring urging the valve to seated position.WVhen it is desired to release the valve for various purposes, such asvalve grinding, or to replace the spring, the spring must be lifted, andthis is ordinarily accomplished by some form of valve lifter whichengages beneath the cup on the valve stem to elevate the spring 1927.Serial No. 182,009.

cludes what may be termed a head bar a, a

Lift bar Z), both of which are adjustably mounted upon a bar 0, andmeans at adapted to cooperate with the lift bar Z) to perform thefunction intended by this device. The

bar 0 may be of any cross section, and the head bar a and the lift bar?)are both constructed so as to be permitted relative movementon the saidbar 0. In particular, the lift barb is formed by utilizing two elongatedmetal bars 1 and 2, which are'secured together for a portion of theirlength, as indicated at 3, then separated at etso as to surround the bar0, there being a set screw 5 seated in the bar 6 for engaging the bar 0whereby the said bar 6 may be secured against movement relative to thebar 0. The bars 1 and 2 separate as shown at 6 the degree of separationbeing regulated by means 7, constituting a screw passed through athreaded opening in the said bars 1 and 2. There are many ways ofcausing separation between the bars 1 and 2 at the portion 6, such as byproving one of said bars with a screw-threaded opening, the other ofsaid bars having a plain opening, then adjusting a nut 8 on saidscrew,ywhich nut is included between the said bars. The said bars 1 and2 outwardly from the said adjusting screw are parallel at the zone 9.Thus what may be termed a fork is provided, Likewise in the drawing itwill be seen that the portion 9 of said bars is reduced as to width, asshown in Fig. 2 at 10. The bar I) is provided with upper and lower lips11 and 12, which act as guides to prevent up C and down play of saidlift bar-relative to thefbar 6.

The hea'd bar a like-wise comprises two bars 13 and 1 joined together,and spaced apart at one end 15, so as to surround the bar 0, there beinga set screw '16 seated in the head bar a for engaging the bar 0 wherebythe head bar may be adjust-ably secured to the bar The @pmsite nd isshape at 17,- The sa d bar 1? and 4: are Provid d with lips 18 and 19,which act as guides for the head bar, functioning the same as the lips11 and 12.

The means cl comprises a device adapted to be reciprocated in such amanner as to cooperate with the lifting bar to lift the spring of thevalve. This means in the present instance comprises a tube 20 which issplit for a portion at 21, so as to receive the cam head 22of a lever23. WVithin the bore of the tube is placed a bearing member 24:, and thehead of a plunger 25 engages said bearing. In order to maintain theplunger head in contact with the bearing a coil spring 26 surrounds theplunger and engages said head, the coil spring being held within thebore through'the medium of an annular bushing 27. The cam h ad 22 isrotatively secured within the split portion of the tube by a pin 28.

The cam head is curved, as shown at 29, and provided with asubstantially flat nose 80. The arm 23 forms a continuation of the head.When the arm 23 is at right angles, or substantially so, to the head bara the plunger has been moved its maximum distance outwardly from thetube 20, and when the arm is revolved upwardly'the bearing 24 will ridealong the curved surface 29 and the plunger will be retracted within thetube 20 under urgency of the spring 26.

In actual operation reference is had to Fig. 1, and it will be seen thatthe fork ends 9 of the lift bar have engaged beneath the cup 30 of thespring 31 surrounding the valve stem. The plunger 25 engage-s the valvehead, and when the lever is pushed downwardly the spring is compressed,as shown.

Adjustment can be made for any size of valve or degree of movementdesired by regulating the spacing of the head and lift bars a and 12relative to the bar a. A small pin 32 in the valve stem may be knockedtherefrom so that upon releasing the lever 23 the spring cup will dropdownwardly from the valve stem, so that the valve can be removed.

The device is compact, and very efiicient and easy to handle. WVhen thenose is engaging the bearing 24 the device is locked against movement,and the operator can confine his attention to removing the pin 32, orperforming any other work desired.

It is obvious that various changes and modifications and variations maybe made in practising the invention in departure from the particularshowing of the drawing, without departing from the true spirit thereof.

Having thus disclosed my invention, I claim and desire to secure byLetters Patent:

A valve lifter of the character disclosed including a supporting bar, alift bar movable thereon, said lift bar comprising a pair of membersadapted to separate adjacent one end and formed to surround thesupporting bar at the opposite end, means for regulating CHARLES E.NEGLEY.

